# CVE-2025-8349: Cross-Site Scripting (XSS) stored in Tawk Live Chat

> Attackers can execute JavaScript in victims' browsers via malicious PDFs in Tawk Live Chat, potentially stealing session cookies or performing actions.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 20 Oct 2025
- **Updated:** 24 Mar 2026
- **Also known as:** GHSA-jqpj-2w79-j7h7

## What is CVE-2025-8349?

CVE-2025-8349 is a medium-severity cross-site scripting vulnerability in Tawk Live Chat, published on 20 Oct 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Cross-site Scripting (XSS) stored vulnerability in Tawk Live Chat. This vulnerability allows an attacker to execute JavaScript code in the victim's browser by uploading a malicious PDF with JavaScript payload through the chatbot. The PDF is stored by the application and subsequently displayed without proper sanitisation when other users access it. This vulnerability can be exploited to steal sensitive user data, such as session cookies, or to perform actions on behalf of the user.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2025-8349?


## How do I fix CVE-2025-8349?

No fix has been published for CVE-2025-8349 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-8349 being exploited?

There is no known exploitation of CVE-2025-8349 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-8349 and fix it if it is affected.

What it is: CVE-2025-8349 is a medium-severity cross-site scripting vulnerability in Tawk Live Chat, published on 20 Oct 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2025-8349 in the wild and no public exploit code.

Affected product: Tawk Live Chat. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-8349/ (Markdown: https://insights.sbomify.com/CVE-2025-8349/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-8349
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-8349
- OSV: https://osv.dev/vulnerability/CVE-2025-8349

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-8349/
Summaries are generated and may contain mistakes; the official description above is the record.